The solution structure of CBD of human MCM6

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: QUALITY 

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Characterization and structure determination of the Cdt1 binding domain of human minichromosome maintenance (Mcm) 6

Wei, Z.Liu, C.Wu, X.Xu, N.Zhou, B.Liang, C.Zhu, G.

(2010) J Biol Chem 285: 12469-12473

  • DOI: https://doi.org/10.1074/jbc.C109.094599
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The minichromosome maintenance (Mcm) 2-7 complex is the replicative helicase in eukaryotic species, and it plays essential roles in the initiation and elongation phases of DNA replication. During late M and early G(1), the Mcm2-7 complex is loaded onto chromatin to form prereplicative complex in a Cdt1-dependent manner. However, the detailed molecular mechanism of this loading process is still elusive. In this study, we demonstrate that the previously uncharacterized C-terminal domain of human Mcm6 is the Cdt1 binding domain (CBD) and present its high resolution NMR structure. The structure of CBD exhibits a typical "winged helix" fold that is generally involved in protein-nucleic acid interaction. Nevertheless, the CBD failed to interact with DNA in our studies, indicating that it is specific for protein-protein interaction. The CBD-Cdt1 interaction involves the helix-turn-helix motif of CBD. The results reported here provide insight into the molecular mechanism of Mcm2-7 chromatin loading and prereplicative complex assembly.

  • Organizational Affiliation

    Department of Physics and Shanghai Key Laboratory for Magnetic Resonance, East China Normal University, Shanghai 200062, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA replication licensing factor MCM6114Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for Q14566 (Homo sapiens)
Explore Q14566 
Go to UniProtKB:  Q14566
PHAROS:  Q14566
GTEx:  ENSG00000076003 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ14566
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 300 
  • Conformers Submitted: 20 
  • Selection Criteria: QUALITY 

Structure Validation

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Entry History 

Deposition Data

  • Released Date: 2010-03-02 
  • Deposition Author(s): Liu, C.

Revision History  (Full details and data files)

  • Version 1.0: 2010-03-02
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2022-03-16
    Changes: Database references, Derived calculations
  • Version 1.3: 2024-05-29
    Changes: Data collection